Copenhagen has the highest average price of a single ticket on a bus, tram or subway, costing $4.68, followed by Stockholm, where a single ticket costs $4.22 and London, where a ticket costs $4.07.
New York City has the cheapest public transport network in the world, with a single trip costing $2.78. Tickets cost $2.91 in the second cheapest city, Helsinki, while in Berlin, the third cheapest city, they cost $2.92.
Between 1980 and 2014, the cost of motoring fell by 14 per cent, but bus fares increased by 58 per cent. Rail travel also became dramatically more expensive, with comparable ticket prices rising by 63 per cent.